(in some classification systems) any organism belonging to the kingdom Protista, originally including bacteria, protozoans, algae, and fungi, regarded as distinct from plants and animals. It was later restricted to protozoans, unicellular algae, and simple fungi
See also protoctist
Word origin
C19: from New Latin Protista most primitive organisms, from Greek prōtistos the very first, from prōtos first
Examples of 'protistan' in a sentence
protistan
Dinoflagellate infections have been reported for different protistan and animal hosts.
Fernando Gómez, Alf Skovgaard 2015, 'A Parasite of Marine Rotifers: A New Lineage of Dinokaryotic Dinoflagellates (Dinophyceae)',Journal of Marine Biologyhttp://dx.doi.org/10.1155/2015/614609. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Guidelines are provided to develop a similar protocol for use with any protistan culture.
Alan O Marron, Michael Akam, Giselle Walker 2013, 'A duplex PCR-based assay for measuring the amount of bacterial contamination in anucleic acid extract from a culture of free-living protists.', PLoS ONEhttp://europepmc.org/articles/PMC3625144?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This hitherto largely ignored feeding mode may have pronounced implications for the interpretation of experiments about protistan bacterivory.
Kasia Piwosz, Jakob Pernthaler 2011, 'Enrichment of omnivorous cercozoan nanoflagellates from coastal Baltic Sea waters.',PLoS ONEhttp://europepmc.org/articles/PMC3180281?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Under high protistan grazing pressure, there was a clear shift in bacterial community composition regarding both size-structure distribution and genotypes.
Roberto BERTONI, Cristiana CALLIERI, Emanuele CARAVATI, Gianluca CORNO 2008, 'Effects of predation pressure on bacterial abundance, diversity, and size-structuredistribution in an oligotrophic system', Journal of Limnologyhttp://www.jlimnol.it/index.php/jlimnol/article/view/171. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Recent development of next-generation sequencing technologies offered a very powerful tool for studying the richness of protistan communities.
Alexandra A-T Weber, Jan Pawlowski 2013, 'Can abundance of protists be inferred from sequence data: a case study of foraminifera.',PLoS ONEhttp://europepmc.org/articles/PMC3576339?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Protistan predation has been considered to be a strong driving force for the evolution of bacterial defense strategies.
Jin Liu, Yuhao Dong, Nannan Wang, Shougang Li, Yuanyuan Yang, Yao Wang, Furqan Awan,Chengping Lu, Yongjie Liu 2018, 'Tetrahymena thermophila Predation Enhances Environmental Adaptation of the Carp PathogenicStrain Aeromonas hydrophila NJ-35', Frontiers in Cellular and Infection Microbiologyhttp://journal.frontiersin.org/article/10.3389/fcimb.2018.00076/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Characterizations of the temporal dynamics of protistan activities contribute knowledge for predicting how these microorganisms respond to environmental forcing factors.
Sarah K. Hu, Paige E. Connell, Lisa Y. Mesrop, David A. Caron 2018, 'A Hard Day's Night: Diel Shifts in Microbial Eukaryotic Activity in the North PacificSubtropical Gyre', Frontiers in Marine Sciencehttps://www.frontiersin.org/article/10.3389/fmars.2018.00351/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)